The answer to this is A and D. A and D are both rational because they contain repeating numbers.
B) could've been the answer but it doesn't show any repeating numbers
C) Doesn't have a repeating number.
So A and D are the answers. (if there is only one option for this answer then D should be the answer)
Hoped this helped :)
Have a great day
Answer:
Well you can either straight up subtract from the total degrees of a triangle using the sum of both of the given angles, which would equal x, or you can make an equation. I’ll do both.
180-78-51=51, x=51
78+51+x=180
129+x=180
x=180-129
x=51
Answer:
x=-32/11
Step-by-step explanation:
Let's solve your equation step-by-step.
1/(x+3)=11
(1/n=reciprocal of n)
Step 1: Multiply both sides by x+3.
1=11x+33
11x+33=1(Flip the equation)
11x+33−33=1−33(Subtract 33 from both sides)
11x=−32
11x/11=−32/11
(Divide both sides by 11)
x=−32/11
Check answers. (Plug them in to make sure they work.)
x=−32/11
(Works in original equation)
Answer:
Step-by-step explanation:
the simpliest form is 
